Updated OS versions for apple products.

[laundry-96]

Specifically updated the versions for iOS, watchOS, and tvOS.

Changelog: Feature: Updated OS versions for apple products
Docs: omit

The issue this refers to is #4344

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[CLAassistant]

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[lasote]

@SSE4 @laundry-96 any insight about the need of specifying the "patch" version (4.2.3)? for watchOS and tvOS? our criteria here should be the "compatibility".

[SSE4]

these version numbers are intended to be used for flags like -mios-version-min (or IOS_DEPLOYMENT_TARGET environment variable).
this works in general in conjunction with availability macro definitions, as documented at:
https://clang.llvm.org/docs/AttributeReference.html#availability
http://clang.llvm.org/docs/LanguageExtensions.html#objective-c-available
such version numbers define SDK version which introduced some functions.
as Apple documents, SDK versions are major + minor:
https://developer.apple.com/library/archive/documentation/DeveloperTools/Conceptual/cross_development/Configuring/configuring.html

An OS X SDK is named by major version, such as MacOSX10.6.sdk, but represents the latest minor version available for the major version.

The iOS SDKs are named by minor versions of iOS, such as iPhoneOS4.2.sdk.

Therefore, from my point of view, it doesn't make such sense to add minor versions into the conan default settings.

[laundry-96]

Removed the patch versions from init.py